Scientific calculator plus 991
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564K reviews
PEGI 3
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50M+
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PEGI 3
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About this app
Scientific calculator 300 plus, 991 is the calculator for students and engineering student. Calculator 991 plus provides powerful functions in a real calculator 991 300 . It makes advanced calculator 991 become the most useful calculator for university and school.
Application includes some calculators inside:
- Basic calculator 300 plus
- Advanced calculator 115 plus
- Scientific calculator 991
- Scientific calculator 991 plus
- Graphing calculator 84 plus
Let's see some special features:
◉ Basic calculator 300 plus and 115 plus: supports from basic mathematics to advanced math functions: percentage, powers, roots, trigonometric, logarithms calculator. Fraction calculation 991 supports convert fraction to decimal, mixed fraction and solve fractions problems.
◉ Advanced calculator 115 plus: combines of hyper calculator and simple scientific calc. This calculator is a multi-functional advanced calculator 991 with all features in one app. Such as linear algebra, calculus, complex numbers, display result in rectangular and polar coordinates, matrix and vector.
◉ Scientific calculator 991 plus: includes smart equation solver. Equation solver can solve quadratic, cubic equations, systems of equations. Caluculator solves any polynomial. Smart scientific calculator 991 has exponent calculator contains scientific calculations such as derivative, integral, square root calculation, factorial calculation, pi calculation, equation solver.
◉ Scientific calculator 991: supports calculate with infinity number of digits, prime factors, random numbers, combinations, permutations, GCD and LCM. This calculator 991ex is a real engineering simulator. Scientific calculator has features of 500 es, 500 ms, 300 es plus, 991 es plus. Calculator keyboard layout same as calculator 300 es plus, 991 ex and es plus.
◉ Graphing calculator 84 plus supports function graph, polar, parametric and implicit function. Graphing calculator 84 can draw tangent, tracing, derivative, root, min and max. It simulates for graphing caluculator 83 and t1 84, 84 plus.
◉ Integral calculator 991 plus provide powerful calculator to calculate integrate, derivative, differentiation and integration.
◉ This scientific calculator 991 includes CAS (computer algebra system), which can perform symbolic calculation.
◉ Some other features: math formula, physics formula, unit conversion, theme, font and programming.
Application includes some calculators inside:
- Basic calculator 300 plus
- Advanced calculator 115 plus
- Scientific calculator 991
- Scientific calculator 991 plus
- Graphing calculator 84 plus
Let's see some special features:
◉ Basic calculator 300 plus and 115 plus: supports from basic mathematics to advanced math functions: percentage, powers, roots, trigonometric, logarithms calculator. Fraction calculation 991 supports convert fraction to decimal, mixed fraction and solve fractions problems.
◉ Advanced calculator 115 plus: combines of hyper calculator and simple scientific calc. This calculator is a multi-functional advanced calculator 991 with all features in one app. Such as linear algebra, calculus, complex numbers, display result in rectangular and polar coordinates, matrix and vector.
◉ Scientific calculator 991 plus: includes smart equation solver. Equation solver can solve quadratic, cubic equations, systems of equations. Caluculator solves any polynomial. Smart scientific calculator 991 has exponent calculator contains scientific calculations such as derivative, integral, square root calculation, factorial calculation, pi calculation, equation solver.
◉ Scientific calculator 991: supports calculate with infinity number of digits, prime factors, random numbers, combinations, permutations, GCD and LCM. This calculator 991ex is a real engineering simulator. Scientific calculator has features of 500 es, 500 ms, 300 es plus, 991 es plus. Calculator keyboard layout same as calculator 300 es plus, 991 ex and es plus.
◉ Graphing calculator 84 plus supports function graph, polar, parametric and implicit function. Graphing calculator 84 can draw tangent, tracing, derivative, root, min and max. It simulates for graphing caluculator 83 and t1 84, 84 plus.
◉ Integral calculator 991 plus provide powerful calculator to calculate integrate, derivative, differentiation and integration.
◉ This scientific calculator 991 includes CAS (computer algebra system), which can perform symbolic calculation.
◉ Some other features: math formula, physics formula, unit conversion, theme, font and programming.
Advanced scientific calculator 991 plus. Includes simulator 115 and 300 plus.
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Ratings and reviews
546K reviews
JT
- Flag inappropriate
January 8, 2024
Until today this calculator has been able to perform anything the school calculator was supposed to do. The benefit of a physical calc is the touch screen (you can tap into the equation). One big problem I have: It's really hard to find certain functions. Nothing has a describtion on how it works, you have to figure it out yourself. I would really wish that the devs and something in this direction. But overall i love this thing. Best phone calc i've tried so far (and i tried a lot).
265 people found this review helpful
SAMATICA EDUCATION TECHNOLOGY COMPANY LIMITED
February 9, 2024
Thank you so much for taking the time to provide valuable feedback.
Drew Santiago
- Flag inappropriate
October 15, 2026
this calculator does it all! as it should lol. came here after paying 14$/week subscription to geniustools labs fsc calculator (which cant even do binomial or poisson distribution) and watching a YouTube video on this calculator and how it was top 3 in their picks. I tried their first 2 and didn't like them. then I tried this. it has all the stat functions and more and even explains what the formula needs to work. I recommend just paying 4.99 and having it all! thank you guys! highly recommend!
1 person found this review helpful
Philippos Nicolaides
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- Show review history
October 8, 2026
Excellent, even the free version is packed with way more most people might need from a scientific calculator! And it in no way annoys you or pushes you towards the premium version, a truly rare case nowadays. Definitely well worth 5 stars and the required price for the premium version. After 2 years of using it for free and without even needing the premium features, I just purchased because such developers deserve all the support they get
1 person found this review helpful
SAMATICA EDUCATION TECHNOLOGY COMPANY LIMITED
October 8, 2026
Thanks for using our app and taking the time to share this with us! We're so happy you had such a positive experience. We hope you keep using it, and please feel free to share it with your friends if you find it useful!
What’s new
We appreciate all your valuable feedback.
In this update, we added new features, fixed some issues, and improved the math engine.
Thank you for using our app.
In this update, we added new features, fixed some issues, and improved the math engine.
Thank you for using our app.
PEGI 3
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About the developer
SAMATICA EDUCATION TECHNOLOGY COMPANY LIMITED
kimcuc@samatica.com
257A, An Lac Quarter,
Lai Vung Commune
Đồng Tháp 870000
Vietnam
+84 707 975 842
